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netcdf-c/libdap2/dapattr3.c
Dennis Heimbigner f5bd3bf525 cleanup and remove unused code
2012-04-01 20:15:06 +00:00

342 lines
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/*********************************************************************
* Copyright 1993, UCAR/Unidata
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
* $Header: /upc/share/CVS/netcdf-3/libncdap3/dapattr3.c,v 1.14 2009/12/03 03:42:38 dmh Exp $
*********************************************************************/
#include "ncdap3.h"
#define OCHECK(exp) if((ocstat = (exp))) goto done;
/* Forward */
static NCerror buildattribute(char*,nc_type,NClist*,NCattribute**);
static int mergedas1(NCDAPCOMMON*, OCconnection, CDFnode* dds, OCobject das);
static int isglobalname3(char* name);
static NCerror
buildattribute(char* name, nc_type ptype,
NClist* values, NCattribute** attp)
{
NCerror ncstat = NC_NOERR;
NCattribute* att;
att = (NCattribute*)calloc(1,sizeof(NCattribute));
MEMCHECK(att,NC_ENOMEM);
att->name = nulldup(name);
att->etype = ptype;
att->values = values;
if(attp) *attp = att;
return THROW(ncstat);
}
/*
Given a das attribute walk it to see if it
has at least 1 actual attribute (no recursion)
*/
static int
hasattribute3(OCconnection conn, OCobject dasnode)
{
int i;
OCerror ocstat = OC_NOERR;
int tf = 0; /* assume false */
unsigned int nsubnodes;
OCtype ocsubtype;
OCobject* subnodes = NULL;
OCHECK(oc_inq_class(conn,dasnode,&ocsubtype));
if(ocsubtype == OC_Attribute) return 1; /* this is an attribute */
ASSERT((ocsubtype == OC_Attributeset));
OCHECK(oc_inq_nsubnodes(conn,dasnode,&nsubnodes));
OCHECK(oc_inq_subnodes(conn,dasnode,&subnodes));
for(i=0;i<nsubnodes;i++) {
OCobject subnode = subnodes[i];
OCHECK(oc_inq_class(conn,subnode,&ocsubtype));
if(ocsubtype == OC_Attribute) {tf=1; break;}
}
done:
nullfree(subnodes);
return tf;
}
/*
Duplicate the oc merge das and dds code, but
modify to capture such things as "strlen" and "dimname".
*/
int
dapmerge3(NCDAPCOMMON* nccomm, CDFnode* ddsroot, OCobject dasroot)
{
unsigned int i,j;
NCerror ncerr = NC_NOERR;
OCerror ocstat = OC_NOERR;
OCconnection conn = nccomm->oc.conn;
unsigned int nsubnodes, nobjects;
OCobject* dasobjects = NULL;
NClist* dasglobals = nclistnew();
NClist* dasnodes = nclistnew();
NClist* dodsextra = nclistnew();
NClist* varnodes = nclistnew();
NClist* allddsnodes = ddsroot->tree->nodes;
if(ddsroot == NULL || dasroot == NULL) return NC_NOERR;
nobjects = oc_inq_nobjects(conn,dasroot);
dasobjects = oc_inq_objects(conn,dasroot);
/* 1. collect all the relevant DAS nodes;
namely those that contain at least one
attribute value.
Simultaneously look for potential ambiguities
if found; complain but continue: result are indeterminate.
also collect globals and DODS_EXTRA separately.
*/
for(i=0;i<nobjects;i++) {
OCobject das = dasobjects[i];
OCtype octype;
char* ocname = NULL;
int isglobal = 0;
int hasattributes = 0;
OCHECK(oc_inq_class(conn,das,&octype));
if(octype == OC_Attribute) continue; /* ignore these for now*/
OCHECK(oc_inq_name(conn,das,&ocname));
OCHECK(oc_inq_nsubnodes(conn,das,&nsubnodes));
isglobal = (ocname == NULL ? 0 : isglobalname3(ocname));
/* catch DODS_EXTRA */
if(isglobal && ocname != NULL && strcmp(ocname,"DODS_EXTRA")==0) {
nclistpush(dodsextra,(ncelem)das);
nullfree(ocname);
continue;
}
if(ocname == NULL || isglobal) {
nclistpush(dasglobals,(ncelem)das);
nullfree(ocname);
continue;
}
hasattributes = hasattribute3(conn,das);
if(hasattributes) {
/* Look for previously collected nodes with same name*/
for(j=0;j<nclistlength(dasnodes);j++) {
OCobject das2 = (OCobject)nclistget(dasnodes,j);
char* ocname2;
OCHECK(oc_inq_name(conn,das2,&ocname2));
if(ocname2 == NULL || ocname == NULL) goto loop;
if(strcmp(ocname2,"DODS")==0) goto loop;
if(strcmp(ocname,ocname2)==0)
nclog(NCLOGWARN,"nc_mergedas: potentially ambiguous DAS name: %s",ocname2);
loop:
nullfree(ocname2);
}
nclistpush(dasnodes,(ncelem)das);
}
nullfree(ocname);
}
/* 2. collect all the leaf DDS nodes (of type NC_Primitive)*/
for(i=0;i<nclistlength(allddsnodes);i++) {
CDFnode* dds = (CDFnode*)nclistget(allddsnodes,i);
if(dds->nctype == NC_Primitive) nclistpush(varnodes,(ncelem)dds);
}
/* 3. For each das node, lncate matching DDS node(s) and attach
attributes to the DDS node(s).
Match means:
1. DAS->fullname :: DDS->fullname
2. DAS->name :: DDS->fullname (support DAS names with embedded '.'
3. DAS->name :: DDS->name
4. special case for DODS. Apply 1-3 on DODS parent.
*/
for(i=0;i<nclistlength(dasnodes);i++) {
OCobject das = (OCobject)nclistget(dasnodes,i);
char* ocfullname = NULL;
char* ocbasename = NULL;
if(das == OCNULL) continue;
OCHECK(oc_inq_name(conn,das,&ocbasename));
if(strcmp(ocbasename,"DODS")==0) {
OCobject container;
OCHECK(oc_inq_container(conn,das,&container));
if(container == OCNULL) {
ASSERT(container != OCNULL);
}
ocfullname = makeocpathstring3(conn,container,".");
} else {
ocfullname = makeocpathstring3(conn,das,".");
}
for(j=0;j<nclistlength(varnodes);j++) {
CDFnode* dds = (CDFnode*)nclistget(varnodes,j);
char* ddsfullname = makecdfpathstring3(dds,".");
if(strcmp(ocfullname,ddsfullname)==0
|| strcmp(ocbasename,ddsfullname)==0
|| strcmp(ocbasename,dds->ocname)==0) {
mergedas1(nccomm,conn,dds,das);
/* remove from dasnodes list*/
nclistset(dasnodes,i,(ncelem)NULL);
}
nullfree(ddsfullname);
}
nullfree(ocfullname);
nullfree(ocbasename);
}
/* 4. Assign globals */
for(i=0;i<nclistlength(dasglobals);i++) {
OCobject das = (OCobject)nclistget(dasglobals,i);
mergedas1(nccomm,conn,ddsroot,das);
}
/* 5. Assign DOD_EXTRA */
for(i=0;i<nclistlength(dodsextra);i++) {
OCobject das = (OCobject)nclistget(dodsextra,i);
mergedas1(nccomm,conn,ddsroot,das);
}
done: /* cleanup*/
nullfree(dasobjects);
nclistfree(dasglobals);
nclistfree(dasnodes);
nclistfree(dodsextra);
nclistfree(varnodes);
if(ocstat != OC_NOERR) ncerr = ocerrtoncerr(ocstat);
return THROW(ncerr);
}
static int
mergedas1(NCDAPCOMMON* nccomm, OCconnection conn, CDFnode* dds, OCobject das)
{
NCerror ncstat = NC_NOERR;
OCerror ocstat = OC_NOERR;
unsigned int i,j,k;
unsigned int nsubnodes;
OCobject* subnodes = NULL;
OCobject* dodsnodes = NULL;
unsigned int ndodsnodes;
if(dds == NULL || das == OCNULL) return NC_NOERR; /* nothing to do */
if(dds->attributes == NULL) dds->attributes = nclistnew();
/* assign the simple attributes in the das set to this dds node*/
OCHECK(oc_inq_nsubnodes(conn,das,&nsubnodes));
OCHECK(oc_inq_subnodes(conn,das,&subnodes));
for(i=0;i<nsubnodes;i++) {
OCobject attnode = subnodes[i];
OCtype octype, ocetype;
char* ocname = NULL;
unsigned int ocnvalues;
OCHECK(oc_inq_name(conn,attnode,&ocname));
OCHECK(oc_inq_class(conn,attnode,&octype));
if(octype == OC_Attribute) {
NCattribute* att = NULL;
NClist* stringvalues;
OCHECK(oc_inq_primtype(conn,attnode,&ocetype));
OCHECK(oc_inq_dasattr_nvalues(conn,attnode,&ocnvalues));
stringvalues = nclistnew();
for(j=0;j<ocnvalues;j++) {
char* stringval;
OCHECK(oc_inq_dasattr(conn,attnode,j,&ocetype,&stringval));
nclistpush(stringvalues,(ncelem)stringval);
}
ncstat = buildattribute(ocname,
octypetonc(ocetype),
stringvalues,
&att);
if(ncstat) goto done;
nclistpush(dds->attributes,(ncelem)att);
} else if(octype == OC_Attributeset
&& (strcmp(ocname,"DODS")==0
|| strcmp(ocname,"DODS_EXTRA")==0)) {
/* Turn the DODS special attributes into into
special attributes for dds node */
OCHECK(oc_inq_nsubnodes(conn,attnode,&ndodsnodes));
OCHECK(oc_inq_subnodes(conn,attnode,&dodsnodes));
for(j=0;j<ndodsnodes;j++) {
char* dodsname = NULL;
char newname[4096];
OCobject attnode = dodsnodes[j];
NCattribute* att = NULL;
NClist* stringvalues;
OCHECK(oc_inq_class(conn,attnode,&octype));
if(octype != OC_Attribute) continue;
OCHECK(oc_inq_primtype(conn,attnode,&ocetype));
OCHECK(oc_inq_dasattr_nvalues(conn,attnode,&ocnvalues));
stringvalues = nclistnew();
for(k=0;k<ocnvalues;k++) {
char* stringval;
OCHECK(oc_inq_dasattr(conn,attnode,k,&ocetype,&stringval));
nclistpush(stringvalues,(ncelem)stringval);
}
OCHECK(oc_inq_name(conn,attnode,&dodsname));
/* Compute new special name */
strcpy(newname,"_DODS_");
strcat(newname,dodsname);
ncstat = buildattribute(newname,
octypetonc(ocetype),
stringvalues,
&att);
if(ncstat) goto done;
att->invisible = 1;
nclistpush(dds->attributes,(ncelem)att);
/* Define extra semantics associated with DODS and DODS_EXTRA attribute */
if(strcmp(dodsname,"strlen")==0) {
unsigned int maxstrlen = 0;
if(nclistlength(stringvalues) > 0) {
char* stringval = (char*)nclistget(stringvalues,0);
if(0==sscanf(stringval,"%u",&maxstrlen)) maxstrlen = 0;
}
dds->dodsspecial.maxstrlen = maxstrlen;
#ifdef DEBUG
fprintf(stderr,"%s.maxstrlen=%d\n",dds->ocname,(int)dds->dodsspecial.maxstrlen);
#endif
} else if(strcmp(dodsname,"dimName")==0) {
if(nclistlength(stringvalues) > 0) {
char* stringval = (char*)nclistget(stringvalues,0);
dds->dodsspecial.dimname = nulldup(stringval);
#ifdef DEBUG
fprintf(stderr,"%s.dimname=%s\n",dds->ocname,dds->dodsspecial.dimname);
#endif
} else dds->dodsspecial.dimname = NULL;
} else if(strcmp(dodsname,"Unlimited_Dimension")==0) {
if(nccomm->cdf.recorddimname != NULL) {
nclog(NCLOGWARN,"Duplicate DODS_EXTRA:Unlimited_Dimension specifications");
} else if(nclistlength(stringvalues) > 0) {
char* stringval = (char*)nclistget(stringvalues,0);
nccomm->cdf.recorddimname = nulldup(stringval);
#ifdef DEBUG
fprintf(stderr,"%s.Unlimited_Dimension=%s\n",dds->ocname,nccomm->cdf.recorddimname);
#endif
}
} /* else ignore */
nullfree(dodsname);
}
nullfree(dodsnodes);
}
nullfree(ocname);
}
done:
nullfree(subnodes);
if(ocstat != OC_NOERR) ncstat = ocerrtoncerr(ocstat);
return THROW(ncstat);
}
static int
isglobalname3(char* name)
{
int len = strlen(name);
int glen = strlen("global");
char* p;
if(len < glen) return 0;
p = name + (len - glen);
if(strcasecmp(p,"global") != 0)
return 0;
return 1;
}
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